from tkinter import Tk, Canvas, CENTER

X = int (input())
Y = int (input())
N = int (input())
coords = [0*N+X, 0*N+Y, 10*N+X, 0*N+Y, 10*N+X, 10*N+Y, 20*N+X, 10*N+Y, 20*N+X, 0*N+Y, 30*N+X, 0*N+Y, 30*N+X, 20*N+Y, 0*N+X, 20*N+Y]
if min (coords) < 0 or max (coords) > 500:
    print ("Размер фигуры превышает максимальный размер поля")
    exit()
root = Tk()
root.title("Марафон")
canvas = Canvas(bg="white", width=500, height=500)
for i in range(1, 50) :
           canvas.create_line(10*i, 0, 10*i, 500)
           canvas.create_line(0, 10*i, 500, 10*i)

canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon (coords, outline="blue", fill="blue")
root.mainloop()
